10120030101221 has 4 divisors (see below), whose sum is σ = 10291556035200. Its totient is φ = 9948504167244.

The previous prime is 10120030101173. The next prime is 10120030101271. The reversal of 10120030101221 is 12210103002101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10120030101221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10120030101196 and 10120030101205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10120030101271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85762966901 + ... + 85762967018.

It is an arithmetic number, because the mean of its divisors is an integer number (2572889008800).

Almost surely, 2^{10120030101221} is an apocalyptic number.

It is an amenable number.

10120030101221 is a deficient number, since it is larger than the sum of its proper divisors (171525933979).

10120030101221 is an equidigital number, since it uses as much as digits as its factorization.

10120030101221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171525933978.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 10120030101221 its reverse (12210103002101), we get a palindrome (22330133103322).

The spelling of 10120030101221 in words is "ten trillion, one hundred twenty billion, thirty million, one hundred one thousand, two hundred twenty-one".